The MCS-150 is an important part of maintaining a commercial transportation company’s USDOT registration.
It helps the Federal Motor Carrier Safety Administration keep current information about motor carriers and other regulated businesses, including company identity, operations, vehicles, drivers, and mileage.
Under the normal federal schedule, registrants must complete a biennial update even when their company information has not changed.
However, FMCSA’s transition to Motus and a temporary enforcement suspension in 2026 have changed how carriers should approach certain deadlines.
What Is the MCS-150 Form?
The MCS-150, also known as the Motor Carrier Identification Report, maintains information associated with an existing USDOT number.
FMCSA uses the information for registration administration and motor carrier safety oversight.
The form is not an operating authority application, annual vehicle inspection, or UCR renewal.
What Information Is Included?
The MCS-150 generally collects:
- USDOT number and applicable identification numbers
- Legal business name and DBA
- Principal business and mailing addresses
- Contact information
- Operating and cargo classifications
- Number of power units and drivers
- Vehicle mileage information
- Other applicable business and operational details
Companies should use accurate, supportable figures rather than estimates selected to influence their public safety profile.
Who Must Complete a Biennial Update?
Entities with USDOT numbers subject to the federal biennial update requirement must maintain their registration information.
The requirement applies to qualifying motor carriers and other covered registrants.
A one-truck carrier is not automatically exempt because of fleet size.
Under the normal rule, the update is required even if the company has not changed its information.
When Is the MCS-150 Due?
The final two digits of the USDOT number determine the normal biennial schedule.
The last digit determines the month:
| Last digit | Filing month |
| 1 | January |
| 2 | February |
| 3 | March |
| 4 | April |
| 5 | May |
| 6 | June |
| 7 | July |
| 8 | August |
| 9 | September |
| 0 | October |
The second-to-last digit determines the year.
An odd digit means odd-numbered years. An even digit means even-numbered years.
The normal deadline is the last day of the assigned month.
Example of the Filing Schedule
A USDOT number ending in 34 has a normal filing deadline in April of even-numbered years.
A number ending in 57 has a normal deadline in July of odd-numbered years.
These examples show the underlying schedule.
For deadlines due on or after June 1, 2026, FMCSA’s temporary enforcement suspension must also be considered.
Does a Recent Update Count?
FMCSA considers a qualifying MCS-150 or MCS-150C update completed within the 12 months immediately preceding the scheduled deadline to satisfy that biennial update.
A carrier should verify the accepted filing date.
An earlier qualifying filing does not permanently change the USDOT-based schedule.
When Must Company Changes Be Reported?
FMCSA requires registration information to be updated within 30 days of a reportable change.
Relevant changes may include the business address, contact information, operating classification, or power-unit count.
Some legal-name, ownership, or business-structure changes may require a separate registration procedure.
Carriers should confirm the correct process before submitting.
What Changed in 2026?
FMCSA launched Motus on May 19, 2026, to modernize registration and company-account administration.
On September 10, 2026, FMCSA announced a temporary suspension of biennial update enforcement and related USDOT-number inactivation for updates due on or after June 1, 2026.
Affected registrants have additional time during the transition.
The underlying update requirement remains in place.
Does the Suspension Eliminate MCS-150 Filing?
No.
The suspension changes specified enforcement consequences for covered deadlines.
It does not permanently repeal the biennial update rule.
It also does not excuse inaccurate registration information or unrelated safety violations.
Carriers should monitor FMCSA for further instructions.
How Do You File Through Motus?
Visit the official system at MOTUS .
Create an individual profile and complete the required identity verification.
An existing registrant can claim its USDOT number and establish a company account.
Review imported business information, complete the appropriate update, and retain confirmation.
Follow current FMCSA instructions for any transaction requiring a different submission method.
Can a Third Party Assist With Filing?
Yes.
Motus allows supporting companies to perform authorized registration actions.
A carrier should retain control of its company account and individual The public’s one account for government. | Login.gov credentials.
Outside assistance is optional, and the registrant remains responsible for accurate information.
Is There a Government Filing Fee?
FMCSA does not charge a federal processing fee for a routine MCS-150 biennial update.
Private compliance providers may charge for optional assistance.
Their service charges should not be confused with government fees.
What Happens if You Miss an Update?
Under the normal enforcement framework, a missed required update may result in USDOT-number inactivation and potential civil penalties.
However, FMCSA has temporarily suspended related inactivation for biennial updates due on or after June 1, 2026.
A late filing does not automatically prove that the USDOT number is inactive.
Check the actual registration record before taking action.
Can an MCS-150 Update Affect Safety Data?
Yes.
FMCSA uses reported power units and vehicle miles traveled in certain Safety Measurement System calculations.
Accurate information can improve the quality of those calculations.
However, filing an update does not erase valid roadside inspections, crashes, or violations.
Does Filing the MCS-150 Renew Operating Authority?
No.
A USDOT number and federal operating authority serve different purposes.
Certain interstate for-hire operations require separate authority, insurance filings, and process-agent designation.
An MCS-150 update does not automatically reinstate revoked authority.
Does MCS-150 Filing Replace UCR?
No.
UCR is a separate annual registration and fee program for covered interstate transportation entities.
The 2027 UCR registration season opened October 1, 2026.
Completing the MCS-150 does not pay the annual UCR fee.
Frequently Asked Questions
Is the MCS-150 required every two years?
Yes, under the normal federal biennial update rule for covered USDOT registrants.
Must I file when nothing has changed?
Yes, subject to FMCSA’s current temporary enforcement relief.
Can I file before my assigned month?
Yes. A qualifying update within the preceding 12 months can satisfy the scheduled requirement.
Is a routine MCS-150 filing free?
Yes. FMCSA charges no federal government processing fee for a routine biennial update.
Does an MCS-150 filing reactivate operating authority?
No. Operating authority is a separate registration matter.
Does Motus replace the filing requirement?
No. Motus changes the registration system, not the underlying obligation.
Keep Your FMCSA Registration Information Accurate
A complete compliance program includes accurate USDOT information, qualified drivers, properly maintained vehicles, and any required operating authority or annual registrations.
MCS-150 Biennial Update Filing Services – Fmcsa.com provides private education and assistance with federal motor carrier compliance.
Visit MCS-150 Biennial Update Filing Services – Fmcsa.com or call (800) 454-2522 for assistance understanding MCS-150 filing and related FMCSA requirements.
MCS-150 Biennial Update Filing Services – Fmcsa.com is a private compliance resource and is not the Federal Motor Carrier Safety Administration or an official government website. Private assistance is optional and does not guarantee a government processing outcome.
